M: Let's start with engine oils, so this is going to be "Damian - oils".
M: So maybe I'll introduce us first. This is Damian. I'm Marek, You may remember him from a TVN car show...
M: I have an old viewer, who remembers. As me to say hi. D: Thanks. Six years.
M: So there are viewers old enough to know you from TV, not just from the Internet. D: Old host, old viewer...
M: Damian is now active online. He's got a blog, a vlog, I'll link it all down below.
M: And today we're going to be talking about engine oils. This topic keeps popping up in the comments.
All I know about oil is that you need it to lubricate the engine, BUT...
M: ...sorry for the long intro, I also know there should be sticker telling you what oil to pour and when to change it, if there's no sticker there should be an owner's manual, and if there's no manual there's Internet...
D: There's no manual. We're in trouble already.
M: Right. I a few years ago I was on a road trip in a car, which took oil. And no, it was not a VAG car this time.
M: On the way the oil light came on, so I stopped at a gas station. This was some time ago, so mobile Internet was not a thing yet, and even if you managed to find an oil manufacturer's website, all you would get from it was their fax number.
M: So I'm at this gas station, and all they have is WD40... No, that's not an oil... D: Close. W40. SomethingW40.
M: Yes, what the hell does that even mean? Which oil should I pour?
D: Generally speaking, if there's an emergency, and there's no oil, use any engine oil. Doesn't matter if it's for petrol, diesel, tractor.
D: If there's a litre missing from a four litre pan, you're adding 25%. It's better to have anything to get you to a repair shop, than to have nothing. M: It was a Sunday, so there was nothing I could do.
D: It's enough to get you to a service station, change the oil, oil filter, and the engine's fine. Sure, you have to take it easy on the way to the service station, but you can drive for a 100-200 km, and you're not going to damage DPF, catalytic converter...
D: And if there's no emergency, you have to pour whatever manufacturer recommends. I wouldn't focus on the recommended brand, because I know viewers, listeners, readers have their favourite brands, there's a niche oil brand fad as well, because corporations are trying to crew everyone... :)
M: I know, Mazda people like to put Enos or something... D: Eneos. Good oil. Japanese.
D: So you don't need to stick to a particular brand, but norms are important. Every car manufacturer specifies oil viscosity grade like 10W40, but also has to meet the manufacturer's norm. Ford has its norms, Renault has its norms, VW has its norms...
D: We could start going to to viscosity grade here. I'll use VW group, because it's a good example. VW group recommends one oil for all its engines. 5W30. Viscosity grade. Not viscosity.
D: All current engines in VW group, except for 1.0 MPI in Citigo/Mii/up! can be serviced under the long-life regime, at least in Europe, because in Russia long-life is not allowed.
D: So the oil has to meet VW norm 50400 50700. That's it. M: Where will I find this information?
D: It says so on every oil bottle. Oil manufacturers like Poland's own Orlen start putting brand-dedicated stickers on their oil. M: So something's changed since my low-oil incident.
M: The guy at the petrol station told to me to pour anything, because he knows jack... D: And he was right. Pour anything to get you to the service station in an emergency situation.
D: Can we change viscosity? M: Viscosity, and then you mentioned something about oil for diesel and petrol engines...
D: Oil for modern diesel engines are low saps oil. Many people think this means there is less ash in the oil.... M: So it won't clog DPF?
D: No, it won't. But it's not to do with ash IN the oil, but with the amount of saps remaining after combustion in the engine. So yes, DPF will live longer.
D: It's not soot, it's saps. Saps clog your DPF permanently. Soot is combusted, but saps clog it for good. And now, half a percent difference in saps index can even double your DPF life. So the difference is significant.
M: OK, what if we pour diesel low saps oil into a petrol engine? Until now they do not have additional filters, now they will have GPF, but let's focus on the ones, which still don't have it.
D: It has slightly different additives. Why would you do it in the first place? M: One of my viewers said his authorised service wanted to put diesel oil into his petrol engine. I didn't know what to tell him, except for "stick to manufacturer's specification". D: And that's the right answer.
D: All manufacturers these days recommend using synthetic oils. This also stirs heated debates on forums. Some claim synthetic oil can only be ester-based or PAO. But hydrocracked oil is not a synthetic oil, they say. It's a scam by big corporations :) Because hydrocracked oil is a mineral base processed under high pressure...
M: Are you telling me there are people out there, who...? D: Yes, there are. And they think hydrocracked oil is bad.
D: Of course, it's BS. Hydrocracked oil is also high quality. An ester-based oil needs minerals too for the additives to dissolve. Ester-based oils are better for transmissions, than engines. And there's also GTL technology. Shell produces its oil bases like this. They are pure, and stable at different temperatures. In the end everything is made from petroleum.
D: So if someone says hydrocracked oil is a scam, because it's made of petroleum, and PAO is not, because it's made of... It's also made of pertoleum. It's like saying if you eat potatoes, it's like drinking vodka, because vodka is made from potatoes.
M: Interesting example. Let's go back to long-life, which you mentined a couple of minutes ago. It's another "consipracy". As far as I understand long-life, correct me if I'm wrong, the car computer has certain preset parameters, and it knows oil needs to be changed, when certain conditions are met. Like how the car is used, how many kilometres it drove...
D: I don't know the exact procedures for particular car manufacturers. This could be the number of times a car starts. M: It's a different story with car driving up and down a motorway, and a different story with a car driving in heavy city traffic.
D: Right. A mom car dropping kids to school, shopping, etc. 3 km, stop, 3 km, stop.
M: Theoretically two cars can have similar milage... D: In one the computer tells you to change the oil after 15k km. M: And in the other you can do 30k km, before chage oil light message is displayed.
D: Important thing about long-life is that you don't have to drive with the same oil until the computer tells you to change it. M: Sure, if I want to change oil after 10k km, I can do it.
D: Nobody's going to stop a rich man from burning money in a fireplace. M: The computer thinks it's not time to change yet. D: Long-life is about driving for UP TO 30k km without changing oil. It depends on how the car is used.
D: Someone's going to tell us in the comments what they think about it. But let's take trucks as an example.
D: MAN has this engine, which is used in all sorts of trucks. The same engine powers trucks used on construction sites, doing logistics deliveries within a city, driving between cities, or doing transcontinental deliveries.
D: The truck doing transcontinental duty can have oil changed every 100k km. But the construction site truck needs an oil change every 6k km. Oil is the same. Engine is the same. Utilisation is different. And that's the whole secret.
D: If someone wants to change oil more often, nobody's going to stop him. But remember in Poland we have about 18m registered and insured cars on the road. Let's assume each of these cars takes 4 litres of oil. We can the oil in all of these once a year, or once every two years.
D: So 18m x 4 and you see how much oil needs to be changed... M: And all this oil then needs to be utilised. D: Which is a burden to the environment. I know oil tankers are even worse, and volcanos are also terrible... M: And recycling a good car is even worse.
D: We're all fed up with smog, because people burn old tyres to heat their houses during winter, but when it comes to cars we don't care, and we get rid of DPFs to cut running costs. DPF was invented by idiots ecologists, but we'll replace engine oil every 10k km. Who cares millions of litres have to be utilised.
D: As far as long life is concerned, thinking is not a stupid idea.
M: I think wel'll wrap up here. D: I could talk for hours about engine oil. M: I'm sure there will be questions, and we'll get back to this topic.
D: We'll talk viscosity, additives, temperatures... M: I'm sure we will :)
M: For now change the oil for whatever your car manufacturer tells you. D: Check for information about heavy-duty use. Driving a lot on short distances could be considered heavy-duty use.
M: So whatever manufacturer tells you, whenever computer tells you to, or more often if you like... D: And accrding to the manufacturer's norm. Doesn't matter, what brand. If an oil meets the manufacturer's norm, it underwent very rigorus, very expensive tests.
D: If you like niche brands, go with niche brands, if you like big corporations, which some of you think are screwing you over... M: Except for Polish corporations. They never screw us over.
M: This was Damian Śmigielski, who told you about engine oils. We'll get back to this topic in the future. D: And this was Marek Wieruszewski... M: ...who mostly listened. Trying to learn something.
M: We'll also talk to Damian in future episodes about other interesting car-related stuff. See you next time.
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